have all these gray dark areas in gel coat seems to be inside not on the surface, tried to wet sand small area nothing works, definately inside anyone have any ideas? will post some pics

they use black gel to back up the color of the boat. Looks like thin white gel and some aligation. They sprayed the black back up gel to soon after the white. A small wet sand and buff would tell you. If it gets worse you know your ubbing through to black gel.

Bill

thanks for your reply , what is aligation ? and do you not think it is water infiltration.

the definition used for when two colors of gel meet and molt in the part. Gel coat is gel coat no matter what color so you should not see any infiltration. Find a moisture meter and you can tell. Run it over a good spot and measure and then over the bad spot and see what you get. Repair houses such as myself should have one.

Billy

Hope this helps!

thank you